pygame系列_游戏中的事件

‘‘‘
    事件                         产生途径                            参数
    QUIT                       用户按下关闭按钮                    none
    ATIVEEVENT                 Pygame被激活或者隐藏                    gain, state
    KEYDOWN                    键盘被按下                            unicode, key, mod
    KEYUP                      键盘被放开                            key, mod
    MOUSEMOTION                鼠标移动                            pos, rel, buttons
    MOUSEBUTTONDOWN            鼠标按下                            pos, button
    MOUSEBUTTONUP              鼠标放开                            pos, button
    JOYAXISMOTION              游戏手柄(Joystick or pad)移动           joy, axis, value
    JOYBALLMOTION              游戏球(Joy ball)?移动            joy, axis, value
    JOYHATMOTION               游戏手柄(Joystick)?移动            joy, axis, value
    JOYBUTTONDOWN              游戏手柄按下                            joy, button
    JOYBUTTONUP                游戏手柄放开                            joy, button
    VIDEORESIZE                Pygame窗口缩放                    size, w, h
    VIDEOEXPOSE                Pygame窗口部分公开(expose)            none
    USEREVENT                  触发了一个用户事件                    code
‘‘‘

 1 #handle the key event
 2 
 3 import pygame
 4 from pygame.locals import *
 5 from sys import exit
 6 
 7 ‘‘‘
 8     事件                         产生途径                            参数
 9     QUIT                 用户按下关闭按钮                    none
10     ATIVEEVENT                 Pygame被激活或者隐藏                    gain, state
11     KEYDOWN                 键盘被按下                            unicode, key, mod
12     KEYUP                 键盘被放开                            key, mod
13     MOUSEMOTION                 鼠标移动                            pos, rel, buttons
14     MOUSEBUTTONDOWN         鼠标按下                            pos, button
15     MOUSEBUTTONUP         鼠标放开                            pos, button
16     JOYAXISMOTION         游戏手柄(Joystick or pad)移动           joy, axis, value
17     JOYBALLMOTION         游戏球(Joy ball)?移动            joy, axis, value
18     JOYHATMOTION         游戏手柄(Joystick)?移动            joy, axis, value
19     JOYBUTTONDOWN         游戏手柄按下                            joy, button
20     JOYBUTTONUP                 游戏手柄放开                            joy, button
21     VIDEORESIZE                 Pygame窗口缩放                    size, w, h
22     VIDEOEXPOSE                 Pygame窗口部分公开(expose)            none
23     USEREVENT                 触发了一个用户事件                    code
24 ‘‘‘
25 __author__ = {‘name‘ : ‘Hongten‘,
26               ‘mail‘ : ‘hongtenzone@foxmail.com‘,
27               ‘blog‘ : ‘http://www.cnblogs.com/hongten‘,
28               ‘QQ‘   : ‘648719819‘,
29               ‘Version‘ : ‘1.0‘}
30 
31 BG_IMAGE = ‘C:\\test\\1.gif‘
32 
33 pygame.init()
34 screen = pygame.display.set_mode((500, 500), 0, 32)
35 bg = pygame.image.load(BG_IMAGE).convert()
36 
37 x, y = 0, 0
38 move_x, move_y = 0, 0
39 
40 while 1:
41     for event in pygame.event.get():
42         #print(event.type)
43         if event.type == QUIT:
44             exit()
45         if event.type == KEYDOWN:
46             print(event.key)
47             #event.key返回的是一个数字值，而K_LEFT,K_UP,K_RIGHT,K_DOWN等都是常量，
48             #他们代表的也是一个数字值，这些数字值可以用：print(event.key)获取到
49             #如：K_LEFT = 276
50             #   K_UP = 273
51             #所以下面的代码可以替换为：
52             #if event.key == 276:
53             #    move_x = -10
54             if event.key == K_LEFT:
55                 move_x = -10
56             elif event.key == K_UP:
57                 move_y = -10
58             elif event.key == K_RIGHT:
59                 move_x = 10
60             elif event.key == K_DOWN:
61                 move_y = 10
62         elif event.type == KEYUP:
63             move_x = 0
64             move_y = 0
65 
66         x += move_x
67         y += move_y
68         #print(x, y)
69 
70         screen.fill((0, 0, 0))
71         screen.blit(bg, (x, y))
72         pygame.display.update()